Finding the Third Proportional to 131,515.50 and 203,412

Step by Step Solution

1. Step 1: Write the proportion equation
   131,515.50 : 203,412 = 203,412 : x
2. Step 2: Convert to fraction form
   131,515.50/203,412 = 203,412/x
3. Step 3: Cross multiply
   131,515.50x = 203,412 × 203,412
4. Step 4: Simplify right side
   131,515.50x = 41,376,441,744
5. Step 5: Solve for x
   x = 41,376,441,744/131,515.50
6. Step 6: Final answer
   x = 314,612.66